Is this easy to use for someone who's not a mechanic?

Absolutely! It's designed for everyone.Just wipe the probe, select your engine type(gasoline or diesel), dip it in the oil, and press the button.You'll get a clear "OK" or "Replace" result on the large screen in seconds—no technical knowledge needed.

How accurate is it compared to just looking at the oil color?

More accurate than the human eye, our optical sensor analyzes microscopic oil contaminants to give definitive percentage and temperature readings—eliminating maintenance guesswork.

Does it work on both old and new cars, and for diesel trucks?

Yes! It is universally compatible with the majority of gasoline and diesel engine oils on the market. Separate testing modes ensure accurate assessment for each engine type, whether it's your daily car, SUV, or diesel pickup truck.

Why should I buy this instead of just changing my oil regularly?

It helps you change oil smartly,not just regularly.It prevents you from changing oil too early (saving money)or too late (preventing engine damage).It's the fastest way to know if your oil is still good,optimizing both engine health and your wallet.

How do I know this is a reliable brand?

The AS503 is built with professional-grade components like a PTFE-coated probe and a robust optical sensor. It comes with a clear manual and is trusted by DIYers and professionals for its simple, dependable readings. Your satisfaction is guaranteed.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Engine Oil Quality Tester AS503 Engine Oil Tester for Gasoline and Diesel Vehicles with 2.8" Screen, High Precision Detection Probe, Transmittance & Oil Temperature Display, Compatible with Various Lubricant Standards

Engine Oil Quality Tester AS503 Engine Oil Tester for Gasoline and Diesel Vehicles with 2.8" Screen, High Precision Detection Probe, Transmittance & Oil Temperature Display, Compatible with Various Lubricant Standards

Product ID: 728308379

📏2.8" HD LCD screen for crystal-clear readings

🔬High-precision optical probe for accurate oil quality detection

🌡️Integrated oil temperature sensor for real-time engine status

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€ 90.06

Duties & taxes included

In stock

Sold byAmazon SpainDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Stay ahead of engine wear with precision you can trust!

GRIP GO - Ergonomic silicone-covered handheld design for comfortable, one-handed operation during busy maintenance routines.
SEE EVERY DETAIL - Large 2.8-inch backlit LCD ensures you never miss critical oil quality data, day or night.
PEACE OF MIND WARRANTY - 3-year damage protection plus lifetime maintenance support keeps your investment secure and reliable.
PRECISION MEETS VERSATILITY - Compatible with gasoline & diesel engines across multiple lubricant standards for flawless diagnostics.
FLEXIBLE TESTING EFFORTLESS HANDLING - 31.5-inch PTFE hose probe offers corrosion resistance and easy access to hard-to-reach engine parts.

The AS503 Engine Oil Quality Tester by QPKING is a professional-grade diagnostic tool designed for both gasoline and diesel vehicles. Featuring a high-precision optical probe, a 2.8-inch backlit LCD screen, and an integrated oil temperature sensor, it delivers accurate, real-time assessments of lubricant condition. Its flexible, corrosion-resistant PTFE hose and ergonomic handheld design make testing convenient and reliable. Backed by a 3-year warranty and lifetime maintenance, this tester is essential for proactive engine care and maintenance.

Specifications

ASIN	B0CG99ZLX7
Amazon Bestseller	#626,485 in Automotive ( See Top 100 in Automotive ) #3,357 in Oil System Tools
Brand	QPKING
Customer Reviews	4.3 4.3 out of 5 stars (119)
Date First Available	August 22, 2023
Item Weight	372 g
Item model number	AS503 engine oil tester
Manufacturer	QPKING
Model	oil quality tester
Package Dimensions	25.5 x 14.2 x 5.89 cm; 372 g

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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The product quality is outstanding. Exactly what I needed for my work.

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